Reactions of π-cyclo-octenyl-π-cyclo-octa-1,5-dienecobalt

Abstract

π-Cyclo-octenyl-π-cyclo-octa-1,5-dienecobalt, Co(C₈H₁₃)(C-H₁₂), was treated with CO in pentane at –60° to –80° to give an orange monocarbonyl complex, Co(CO)(C₈H₁₃)(C₈H₁₂). From this were derived phosphine or phosphite complexes, Co(CO)(C₈H₁₃) L₂[L = PPh₃, PMePh₂, P(OPh)₃] and hydridocarbonylphosphine complexes, Co(H)(CO)L₃. All these new complexes are diamagnetic, soluble in organic solvents, and show well defined proton n.m.r. and i.r. spectra on which structural assignments are based.